We study the prospects of using femtoscopic low-momentum correlation measurements at the Large Hadron Collider to access properties of the $$J/\psi $$ J / ψ -nucleon interaction. The QCD multipole expansion in terms of the $$J/\psi $$ J / ψ chromopolarizability relates the forward scattering amplitude to a key matrix element to the origin of the nucleon mass problem, the average chromoelectric gluon distribution in the nucleon. We use information on the $$J/\psi $$ J / ψ -nucleon interaction provided by lattice QCD simulations and phenomenological models to compute $$J/\psi $$ J / ψ -nucleon correlation functions. The computed correlation functions show clear sensitivity to the interaction, in particular to the $$J/\psi $$ J / ψ chromopolarizability.

中文翻译：

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核子质量起源的飞秒分析

我们研究了在大型强子对撞机上使用飞秒低动量相关测量来获取 $$J/\psi $$J / ψ 核子相互作用的特性的前景。就 $$J/\psi $$J / ψ 色极化率而言的 QCD 多极扩展将前向散射幅度与关键矩阵元素关联到核子质量问题的起源，即核子中的平均色电胶子分布。我们使用由晶格 QCD 模拟和现象学模型提供的 $$J/\psi $J / ψ -核子相互作用的信息来计算 $$J/\psi $$ J / ψ - 核子相关函数。计算出的相关函数显示出对相互作用的明显敏感性，特别是对 $$J/\psi $$J / ψ 色极化率。